Experience beverage enjoyment with our Forma Professional 13.5-ounce Glass Travel Mugs. These travel mugs feature a double-wall design and ensure superior temperature retention. Crafted from borosilicate glass, these cups do not break easily and are suitable for daily use. With the ability to withstand sudden temperature changes from -40F to 300F, these travel coffee cups are apt for any beverage. The included silicone lid of these clear coffee mugs forms a tight seal that avoids leaks. To provide a smooth beverage flow, the lids of these coffee tumblers are designed with a spout. These glass coffee mugs are microwavable and oven-ready, offering versatile heating options. Plus, these double-walled glass mugs are freezable, allowing you to chill beverages quickly. To streamline your cleaning process, these reusable coffee cups are dishwashable. These glass mugs measure 3.5 inches in diameter by 5.9 inches in height and can hold up to 13.5 ounces. Sold in a 10 count box.